SYMBOL and NAME -> - arrow operator SYNOPSIS p -> X TYPES p pointer to an lvalue X identifier return lvalue DESCRIPTION p->X returns the same as (*p).X. Thus the current value of *p is to be an object of a type for which X identifies one element. p->X then returns the lvalue corresponding to that element of of the value of *p. The expression *p.X will cause a runtime error since this is interpreted as *(p.X) in which p is expected to be an object of an appropriate type. Spaces or tabs on either side of -> are optional. EXAMPLES > obj pair {one, two} > obj pair A, B > p = &A > p->one = 1; p->two = 2 > A obj pair {1, 2} > A->two = &B > p->two->one = 3; p->two->two = 4 > *p->ptwo obj pair {3, 4} > B = {5,6} > *p->two obj pair {5, 6} LIMITS none LINK LIBRARY none SEE ALSO address, dereference, isptr, dot ## Copyright (C) 1999 Landon Curt Noll ## ## Calc is open software; you can redistribute it and/or modify it under ## the terms of the version 2.1 of the GNU Lesser General Public License ## as published by the Free Software Foundation. ## ## Calc is distributed in the hope that it will be useful, but WITHOUT ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY ## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General ## Public License for more details. ## ## A copy of version 2.1 of the GNU Lesser General Public License is ## distributed with calc under the filename COPYING-LGPL. You should have ## received a copy with calc; if not, write to Free Software Foundation, Inc. ## 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. ## ## @(#) $Revision: 29.2 $ ## @(#) $Id: arrow,v 29.2 2000/06/07 14:02:33 chongo Exp $ ## @(#) $Source: /usr/local/src/cmd/calc/help/RCS/arrow,v $ ## ## Under source code control: 1997/09/06 20:03:34 ## File existed as early as: 1997 ## ## chongo /\oo/\ http://www.isthe.com/chongo/ ## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/